YES ---- CR(R) ---- [Jouannaud and Kirchner, 1986] R: +(x,0()) -> x +(x,s(y)) -> s(+(x,y)) +(x,p(y)) -> p(+(x,y)) +(0(),y) -> y +(s(x),y) -> s(+(x,y)) +(p(x),y) -> p(+(x,y)) s(p(x)) -> x p(s(x)) -> x +(+(x,y),z) -> +(x,+(y,z)) +(x,y) -> +(y,x) CP_AC(R): +(x,s(y)) -> s(+(x,0(),y)) s(x) -> s(+(0(),x)) +(x,p(y)) -> p(+(x,0(),y)) p(x) -> p(+(0(),x)) x -> x +(s(x),y) -> s(+(x,y,0())) s(x) -> s(+(x,0())) +(p(x),y) -> p(+(x,y,0())) p(x) -> p(+(x,0())) s(+(x,0(),y)) -> +(x,s(y)) s(+(0(),x)) -> s(x) s(+(x,p(y),z)) -> p(+(x,s(z),y)) s(+(p(x),y)) -> p(+(s(y),x)) s(+(0(),x,y)) -> +(x,s(y)) s(+(0(),x)) -> s(x) s(+(x,y)) -> s(+(y,x)) s(+(s(x),y,z)) -> s(+(x,y,s(z))) s(+(s(x),y)) -> s(+(x,s(y))) s(+(p(x),y,z)) -> p(+(x,y,s(z))) s(+(p(x),y)) -> p(+(x,s(y))) p(+(x,0(),y)) -> +(x,p(y)) p(+(0(),x)) -> p(x) p(+(x,s(y),z)) -> s(+(x,p(z),y)) p(+(s(x),y)) -> s(+(p(y),x)) p(+(0(),x,y)) -> +(x,p(y)) p(+(0(),x)) -> p(x) p(+(s(x),y,z)) -> s(+(x,y,p(z))) p(+(s(x),y)) -> s(+(x,p(y))) p(+(x,y)) -> p(+(y,x)) p(+(p(x),y,z)) -> p(+(x,y,p(z))) p(+(p(x),y)) -> p(+(x,p(y))) x -> x s(x) -> s(+(0(),x)) +(x,s(y)) -> s(+(0(),x,y)) p(x) -> p(+(0(),x)) +(x,p(y)) -> p(+(0(),x,y)) s(x) -> s(+(x,0())) +(s(x),y) -> s(+(x,0(),y)) p(x) -> p(+(x,0())) +(p(x),y) -> p(+(x,0(),y)) s(+(x,0())) -> s(x) s(+(x,y,0())) -> +(s(x),y) s(+(x,y)) -> s(+(y,x)) s(+(x,s(y))) -> s(+(s(x),y)) s(+(x,y,s(z))) -> s(+(s(x),y,z)) s(+(x,p(y))) -> p(+(s(x),y)) s(+(x,y,p(z))) -> p(+(s(x),y,z)) s(+(x,0())) -> s(x) s(+(x,0(),y)) -> +(s(x),y) s(+(x,p(y))) -> p(+(y,s(x))) s(+(x,p(y),z)) -> p(+(y,s(x),z)) p(+(x,0())) -> p(x) p(+(x,y,0())) -> +(p(x),y) p(+(x,s(y))) -> s(+(p(x),y)) p(+(x,y,s(z))) -> s(+(p(x),y,z)) p(+(x,y)) -> p(+(y,x)) p(+(x,p(y))) -> p(+(p(x),y)) p(+(x,y,p(z))) -> p(+(p(x),y,z)) p(+(x,0())) -> p(x) p(+(x,0(),y)) -> +(p(x),y) p(+(x,s(y))) -> s(+(y,p(x))) p(+(x,s(y),z)) -> s(+(y,p(x),z)) +(x,y) -> s(+(x,p(y))) +(x,y) -> s(+(p(x),y)) p(x) -> p(x) +(x,y) -> p(+(x,s(y))) +(x,y) -> p(+(s(x),y)) s(x) -> s(x) +(x,y) -> +(y,x,0()) x -> +(x,0()) +(x,y) -> +(y,0(),x) x -> +(0(),x) +(x,y,z) -> +(x,0(),y,z) +(x,y) -> +(0(),x,y) +(x,y,z) -> +(x,y,0(),z) +(x,y) -> +(x,0(),y) +(x,y,z) -> +(x,y,z,0()) +(x,y) -> +(x,y,0()) +(x,y,z) -> +(x,0(),y,z) +(x,y) -> +(0(),x,y) +(x,y,z) -> +(x,y,0(),z) +(x,y) -> +(x,0(),y) +(x,y,z) -> +(x,0(),y,z) +(x,y) -> +(0(),x,y) +(x,y,z) -> +(x,y,0(),z) +(x,y) -> +(x,0(),y) +(x,y,z) -> +(x,y,z,0()) +(x,y) -> +(x,y,0()) +(x,y,z) -> +(x,y,0(),z) +(x,y) -> +(x,0(),y) +(x,y,z) -> +(x,y,z,0()) +(x,y) -> +(x,y,0()) s(+(x,y,z)) -> +(y,x,s(z)) s(+(x,y)) -> +(x,s(y)) s(+(x,y,z)) -> +(y,s(z),x) s(+(x,y)) -> +(s(y),x) s(+(x,y,z,w)) -> +(x,s(w),y,z) s(+(x,y,z)) -> +(s(z),x,y) s(+(x,y,z,w)) -> +(x,y,s(w),z) s(+(x,y,z)) -> +(x,s(z),y) s(+(x,y,z,w)) -> +(x,y,z,s(w)) s(+(x,y,z)) -> +(x,y,s(z)) +(s(+(x,y,z)),w) -> +(x,s(z),y,w) +(s(+(x,y)),z) -> +(s(y),x,z) +(s(+(x,y,z)),w) -> +(x,y,s(z),w) +(s(+(x,y)),z) -> +(x,s(y),z) s(+(x,y,z,w)) -> +(x,s(w),y,z) s(+(x,y,z)) -> +(s(z),x,y) s(+(x,y,z,w)) -> +(x,y,s(w),z) s(+(x,y,z)) -> +(x,s(z),y) s(+(x,y,z,w)) -> +(x,y,z,s(w)) s(+(x,y,z)) -> +(x,y,s(z)) +(x,s(+(y,z,w))) -> +(x,y,s(w),z) +(x,s(+(y,z))) -> +(x,s(z),y) +(x,s(+(y,z,w))) -> +(x,y,z,s(w)) +(x,s(+(y,z))) -> +(x,y,s(z)) p(+(x,y,z)) -> +(y,x,p(z)) p(+(x,y)) -> +(x,p(y)) p(+(x,y,z)) -> +(y,p(z),x) p(+(x,y)) -> +(p(y),x) p(+(x,y,z,w)) -> +(x,p(w),y,z) p(+(x,y,z)) -> +(p(z),x,y) p(+(x,y,z,w)) -> +(x,y,p(w),z) p(+(x,y,z)) -> +(x,p(z),y) p(+(x,y,z,w)) -> +(x,y,z,p(w)) p(+(x,y,z)) -> +(x,y,p(z)) +(p(+(x,y,z)),w) -> +(x,p(z),y,w) +(p(+(x,y)),z) -> +(p(y),x,z) +(p(+(x,y,z)),w) -> +(x,y,p(z),w) +(p(+(x,y)),z) -> +(x,p(y),z) p(+(x,y,z,w)) -> +(x,p(w),y,z) p(+(x,y,z)) -> +(p(z),x,y) p(+(x,y,z,w)) -> +(x,y,p(w),z) p(+(x,y,z)) -> +(x,p(z),y) p(+(x,y,z,w)) -> +(x,y,z,p(w)) p(+(x,y,z)) -> +(x,y,p(z)) +(x,p(+(y,z,w))) -> +(x,y,p(w),z) +(x,p(+(y,z))) -> +(x,p(z),y) +(x,p(+(y,z,w))) -> +(x,y,z,p(w)) +(x,p(+(y,z))) -> +(x,y,p(z)) x -> +(0(),x) +(x,y) -> +(0(),y,x) x -> +(x,0()) +(x,y) -> +(y,0(),x) +(x,y) -> +(x,y,0()) +(x,y,z) -> +(x,y,0(),z) +(x,y) -> +(x,0(),y) +(x,y,z) -> +(x,0(),y,z) +(x,y) -> +(0(),x,y) +(x,y,z) -> +(0(),x,y,z) +(x,y) -> +(x,0(),y) +(x,y,z) -> +(x,0(),y,z) +(x,y) -> +(0(),x,y) +(x,y,z) -> +(0(),x,y,z) +(x,y) -> +(x,y,0()) +(x,y,z) -> +(x,y,0(),z) +(x,y) -> +(x,0(),y) +(x,y,z) -> +(x,0(),y,z) +(x,y) -> +(0(),x,y) +(x,y,z) -> +(0(),x,y,z) +(x,y) -> +(x,y,0()) +(x,y,z) -> +(x,y,0(),z) +(x,y) -> +(x,0(),y) +(x,y,z) -> +(x,0(),y,z) s(+(x,y)) -> +(s(x),y) s(+(x,y,z)) -> +(s(x),z,y) s(+(x,y)) -> +(y,s(x)) s(+(x,y,z)) -> +(z,s(x),y) s(+(x,y,z)) -> +(y,z,s(x)) s(+(x,y,z,w)) -> +(y,z,s(x),w) s(+(x,y,z)) -> +(y,s(x),z) s(+(x,y,z,w)) -> +(y,s(x),z,w) s(+(x,y,z)) -> +(s(x),y,z) s(+(x,y,z,w)) -> +(s(x),y,z,w) +(s(+(x,y)),z) -> +(y,s(x),z) +(s(+(x,y,z)),w) -> +(y,s(x),z,w) +(s(+(x,y)),z) -> +(s(x),y,z) +(s(+(x,y,z)),w) -> +(s(x),y,z,w) s(+(x,y,z)) -> +(y,z,s(x)) s(+(x,y,z,w)) -> +(y,z,s(x),w) s(+(x,y,z)) -> +(y,s(x),z) s(+(x,y,z,w)) -> +(y,s(x),z,w) s(+(x,y,z)) -> +(s(x),y,z) s(+(x,y,z,w)) -> +(s(x),y,z,w) +(x,s(+(y,z))) -> +(x,z,s(y)) +(x,s(+(y,z,w))) -> +(x,z,s(y),w) +(x,s(+(y,z))) -> +(x,s(y),z) +(x,s(+(y,z,w))) -> +(x,s(y),z,w) p(+(x,y)) -> +(p(x),y) p(+(x,y,z)) -> +(p(x),z,y) p(+(x,y)) -> +(y,p(x)) p(+(x,y,z)) -> +(z,p(x),y) p(+(x,y,z)) -> +(y,z,p(x)) p(+(x,y,z,w)) -> +(y,z,p(x),w) p(+(x,y,z)) -> +(y,p(x),z) p(+(x,y,z,w)) -> +(y,p(x),z,w) p(+(x,y,z)) -> +(p(x),y,z) p(+(x,y,z,w)) -> +(p(x),y,z,w) +(p(+(x,y)),z) -> +(y,p(x),z) +(p(+(x,y,z)),w) -> +(y,p(x),z,w) +(p(+(x,y)),z) -> +(p(x),y,z) +(p(+(x,y,z)),w) -> +(p(x),y,z,w) p(+(x,y,z)) -> +(y,z,p(x)) p(+(x,y,z,w)) -> +(y,z,p(x),w) p(+(x,y,z)) -> +(y,p(x),z) p(+(x,y,z,w)) -> +(y,p(x),z,w) p(+(x,y,z)) -> +(p(x),y,z) p(+(x,y,z,w)) -> +(p(x),y,z,w) +(x,p(+(y,z))) -> +(x,z,p(y)) +(x,p(+(y,z,w))) -> +(x,z,p(y),w) +(x,p(+(y,z))) -> +(x,p(y),z) +(x,p(+(y,z,w))) -> +(x,p(y),z,w)